surgical instruments with constricted claws to rotate around a geometric axis through contact with a closing member that is parked in close proximity to the pivot geometric axis

摘要

the present invention relates to a surgical instrument that includes an elongated drive shaft assembly that defines a drive shaft geometric axis and includes a first jaw attached to it. a second jaw is coupled to the first jaw for selective pivoting displacement in relation to it between a completely open position and a completely closed position around a claw pivot geometry axis that is transversal to the driving axis geometry and extends through the same. the elongated drive shaft assembly includes a closing member that is axially movable between an initial position which corresponds to the fully open position and an end position which corresponds to the completely closed position. when the closing member is in the starting position, a distal end thereof is situated on a plane that is distally separated from the claw pivot geometry axis at a distance that is measured along the drive axis geometry which is no longer than 0.090 inch.